Wait and see
Definition 1 of 1
Pro Tip 1/3Expect Patience
The phrase suggests a mindset of patience and anticipation for an outcome. 
The job interview went well, but I'll have to wait and see.
Pro Tip 2/3Uncertainty Handling
Use it when you can't predict the outcome and need to accept the uncertainty. 
Will it rain during our vacation? We'll just have to wait and see.
Pro Tip 3/3Colloquial Tone
Preferably used in casual conversations rather than formal or written contexts. 
I'm not sure if they'll throw a surprise party for me—let's wait and see.